A method for transmitting control information using PUCCH format 3 in a radio communication system includes detecting one or more Physical Downlink Control Channels (PDCCHs), receiving one or more Physical Downlink Shared Channel (PDSCH) signals corresponding to the one or more PDCCHs, and determining a PUCCH resource value nPUCCH(3,p) corresponding to a value of a transmit power control (TPC) field of a PDCCH for a PDSCH signal on a secondary cell (SCell) among a plurality of PUCCH resource values configured by a higher layer for the PUCCH format 3. If a single antenna port transmission mode is configured, the PUCCH resource value nPUCCH(3,p) indicated by the TPC field is mapped to one PUCCH resource for a single antenna port, and, if a multi-antenna port transmission mode is configured, the PUCCH resource value nPUCCH(3,p) indicated by the TPC field is mapped to a plurality of PUCCH resources for multiple antenna ports.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A method for receiving control information via a Physical Uplink Control Channel (PUCCH) at a Base Station (BS) in a radio communication system, the method comprising: transmitting a Radio Resource Control (RRC) signal including a first set of PUCCH resources for antenna port p0 and a second set of PUCCH resources for antenna port p1; and transmitting a Physical Downlink Control Channel (PDCCH) signal including a 2-bit Transmit Power Control (TPC) field and scheduling information, wherein the value of the 2-bit TPC field is determined to allocate two PUCCH resources for the antenna ports p0 and p1 based on a mapping relation of table 1: TABLE 1 Value of PUCCH resources for antenna ports p0 and P1, TPC field [n PUCCH (3,p0) , n PUCCH (3,p1) ] 00 first PUCCH resources, [n PUCCH,0 (3,p0) , n PUCCH,0 (3,p1) ] 01 second PUCCH resources, [n PUCCH,1 (3,p0) , n PUCCH,1 (3,p1) ] 10 third PUCCH resources, [n PUCCH,2 (3,p0) , n PUCCH,2 (3,p1) ] 11 fourth PUCCH resources, [n PUCCH,3 (3,p0) , n PUCCH,3 (3,p1) ].
2. The method of claim 1 , further comprising receiving control information using the two PUCCH resources for the antenna ports p0 and p1.
3. The method of claim 2 , further comprising receiving a Physical Downlink Shared Channel (PDSCH) signal corresponding to the PDCCH signal, wherein the control information includes Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) for the PDSCH signal.
4. The method of claim 1 , wherein the PUCCH includes a PUCCH format 3.
5. A Base Station (BS) configured to receive control information via a Physical Uplink Control Channel (PUCCH) in a radio communication system, the BS comprising: a radio frequency (RF) unit; and a processor, wherein the processor is configured to: transmit a Radio Resource Control (RRC) signal including a first set of PUCCH resources for antenna port p0 and a second set of PUCCH resources for antenna port p1, and transmit a Physical Downlink Control Channel (PDCCH) signal including a 2-bit Transmit Power Control (TPC) field and scheduling information, wherein the value of the 2-bit TPC field is determined to allocate two PUCCH resources for the antenna ports p0 and p1 based on a mapping relation of table 1: TABLE 1 Value of PUCCH resources for antenna ports p0 and p1, TPC field [n PUCCH (3,p0) , n PUCCH (3,p1) ] 00 first PUCCH resources, [n PUCCH,0 (3,p0) , n PUCCH,0 (3,p1) ] 01 second PUCCH resources, [n PUCCH,1 (3,p0) , n PUCCH,1 (3,p1) ] 10 third PUCCH resources, [n PUCCH,2 (3,p0) , n PUCCH,2 (3,p1) ] 11 fourth PUCCH resources, [n PUCCH,3 (3,p0) , n PUCCH,3 (3,p1) ].
6. The BS of claim 5 , wherein the processor is further configured to receive control information using the two PUCCH resources for the antenna ports p0 and p1.
7. The BS of claim 6 , wherein the processor is further configured to receive a Physical Downlink Shared Channel (PDSCH) signal corresponding to the PDCCH signal, wherein the control information includes Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) for the PDSCH signal.
8. The BS of claim 5 , wherein the PUCCH includes a PUCCH format 3.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
September 9, 2014
February 7, 2017
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